D330, D333, 3304, 3306 – Fuel Transfer Pump (7L543 and 2N8603) Specifications

Pressure of fuel to injection pump … 25 to 32 psi(1.76 to 2.25 kg/cm2)

(1) Bore of bearing … .4953 ± .0003 in.(12.581 ± 0.008 mm)

(2) Depth of bore in body … .3750 ± .0003 in.(9.525 ± 0.008 mm)

(3) Torque for nut … 22 ± 5 lb. ft.(3.0 ± 0.7 mkg)

(4) Clearance between gear and cover (new) … .001 to .003 in.(0.02 to 0.08 mm)

Maximum permissible clearance between gear and cover (worn) … .0035 in.(0.089 mm)

(5) Shaft diameter (new) … .4937 ± .0001 in.(12.540 ± 0.003 mm)

Bore in shaft bearing … .4953 ± .0003 in.(12.581 ± 0.008 mm)

Maximum permissible clearance between shaft and bearing (worn) … .003 in.(0.08 mm)

(6) 2N9333 Spring (2N8603 Pump only)

Length under test force … .994 in.(25.25 mm)

Test force … 4.08 lb.(1.9 kg)

Free length after test … 1.81 in.(45.9 mm)

Outside diameter … .634 in.(16.10 mm)

(7) Torque for plug … 110 ± 15 lb. ft.(15.2 ± 2.1 mkg)

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